{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical"], "input": "Spatially resolved electron energy loss spectroscopy ( SR - EELS ) using scanning transmission electron microscope ( STEM ) allows the identification and determination of the spatial distribution of the components / elements of immuno - functionalized core - shell superparamagnetic magnetite nanoparticles ."}
{"Chemical": []}